Lock Adapter

ABSTRACT

A lock adapter includes a first adapter arm and a second adapter arm. The first adapter arm has a first end which mating with a staple of a latch assembly, which, with a corresponding hasp, controls access to a structure. The first adapter arm also has second end configured for mating with the shackle of the lock. The second adapter arm also has a first end and a second end. The first end of the second adapter arm is configured for mating with the first end of the first adapter arm after the first end of the first adapter arm mates with the latch. The second end of the second adapter arm is configured for mating with the shackle of the lock. Upon the lock adapter mating with the staple and with the shackle of the lock, access to the structure via the latch assembly is inhibited.

CROSS REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of priority pursuant to 35 U.S.C. § 119(e) of U.S. provisional application No. 63/323,289 filed 24 Mar. 2022 entitled “Lock adapter,” the contents of which are hereby incorporated herein by reference in its entirety.

TECHNICAL FIELD

The subject matter described herein relates to devices, systems, and methods for coupling a lock to a structure.

BACKGROUND

Various forms of structures such as doors, cabinets, boxes, rooms, containers, or the like are commonly secured using a removable locking mechanism (herein a “padlock”). As used herein, a padlock is a lock that is not physically integrated with a structure, or part thereof, to be secured and is provided separately. A padlock, as distinguished from a built-in lock, may be used with multiple different structures, but with one structure at any given time. Non-limiting examples of padlocks include those manufactured under the MASTER LOCK™ brand by Master Lock Company LLC, of Oak Creek, Wisconsin, USA.

A padlock commonly includes a shackle that is secured in a lock body by one or more internal locking members. The locking members typically engage with corresponding notches in the shackle to prevent axial withdrawal of the shackle from the lock body. The internal locking members may be mechanically released by one of several common mechanisms, for example, pin or disk tumblers released by a key or combination locks (e.g., with a single rotating dial or multiple rotating thumbwheels). In some padlock designs, various electronic control mechanisms are used, in addition to the mechanical locking members, to inhibit unauthorized withdrawal of the shackle from the lock body. Non-limiting examples of such electronic control mechanisms include electronic keypads that actuate lock releases and wireless control systems that receive release signals via a communication protocol e.g., Bluetooth® or near field communication (NFC).

A shackle is typically constructed of a hardened metal, a hardened metal alloy, or a composition thereof, such as a boron alloy, hardened steel, or the like. A shackle also commonly may be provided in various lengths, widths, diameters, and materials. Materials may include boron alloys, hardened steel, and the like. Lock bodies are also commonly provided in various lengths, widths, diameters, and materials.

Often a structure includes a latch assembly or similar mechanism configured for use with a padlock to secure the structure. The latch assembly commonly includes a latch eye into which a shackle can be inserted to secure the structure. The latch assembly may commonly be provided in various sizes, with differing eye dimensions, numerous assembly configurations, and the like.

For some implementations, a latch assembly may be configured, relative to other structural members of a given structure, such that the use of a given padlock with the given latch assembly may be inhibited by the one or more other structural members. For example, a structural wall member may be too close to a latch eye of a given latch assembly to permit use of a given padlock, such as a padlock having a shackle or lock body with given dimensions, characteristics, or otherwise.

SUMMARY

In accordance with at least one implementation of the present disclosure, a lock adapter for a lock with a shackle includes the following: a first adapter arm having a first end and a second end; wherein the first end of the first adapter arm is configured for mating with a staple of a latch assembly; wherein the latch assembly includes corresponding hasp configured for use in controlling access to at least a portion of a structure; and wherein the second end of the first adapter arm is configured for mating with the shackle of the lock; and a second adapter arm having a first end and a second end; wherein the first end of the second adapter arm is configured for mating with the first end of the first adapter arm after the first end of the first adapter arm mates with the latch; and wherein the second end of the second adapter arm is configured for mating with the shackle of the lock; and wherein upon the lock adapter mating with the staple and with the shackle of the lock, access to the structure via the latch assembly is inhibited.

In accordance with another implementation of the lock adapter, the second end of the first adapter arm defines an aperture sized to receive the shackle of the lock therethrough.

In accordance with another implementation of the lock adapter, the second end of the second adapter arm defines an aperture sized to receive the shackle of the lock therethrough.

In accordance with another implementation of the lock adapter, the first end of the first adapter arm is sized and formed to extend through an eye defined within the staple of the latch assembly; and the first end of the first adapter arm defines an aperture configured to receive the first end of the second adapter arm therethrough after the first end of the first adapter arm extends through the eye of the staple.

In accordance with another implementation of the lock adapter, the first adapter arm extends along a first longitudinal axis from the first end to the second end and is planar with respect to a second axis.

In accordance with another implementation of the lock adapter, the first adapter arm extends along a first longitudinal axis from the first end to the second end and bends at a vertex between the first end and the second end with respect to a second axis.

In accordance with another implementation of the lock adapter, the first adapter arm extends along a first longitudinal axis from the first end to the second end and is planar with respect to a second axis; and the second adapter arm defines a first bend, at a first vertex between the first end of the second adapter arm and the second end of the adapter arm, that allows the second adapter arm to nest around the staple.

In accordance with another implementation of the lock adapter, the second adapter arm defines a second bend at a second vertex between the first vertex and a distal portion of the first end of the second adapter arm.

In accordance with another implementation of the lock adapter, the second end of the second adapter arm lies within a first plane; and the distal portion of the first end of the second adapter arm lies within a second plane parallel to, but spaced apart from, the first plane.

In accordance with another implementation of the lock adapter, the first end of the second adapter arm defines a latch finger portion with a smaller cross-sectional area than a central portion of the second adapter arm extending between the first end of the second adapter arm and the second end of the second adapter arm.

In accordance with another implementation of the lock adapter, the second end of the first adapter arm defines a first shackle aperture sized to receive the shackle of the lock therethrough; and the second end of the second adapter arm defines a second shackle aperture sized to receive the shackle of the lock therethrough.

In accordance with another implementation of the lock adapter, the first adapter arm and the second adapter arm are of unitarily formed of a hardened metal alloy.

In accordance with another implementation of the lock adapter, the first end of the first adapter arm is sized and formed to extend through an eye defined within the staple of the latch assembly; and the first end of the second adapter arm defines an aperture configured to receive the first end of the first adapter arm therethrough after the first end of the first adapter arm extends through the eye of the staple.

In accordance with another implementation of the lock adapter, the first adapter arm extends along a first longitudinal axis from the first end to the second end and bends at a first vertex between the first end of the first adapter arm and the second end of the first adapter arm with respect to a second axis; and the second adapter arm defines a first bend at a second vertex located between the first end of the second adapter arm and the second end of the adapter arm such that the bend allows the second adapter arm to nest around the staple.

In accordance with another implementation of the lock adapter, the second adapter arm defines a second bend at a third vertex located between the second vertex and the second end of the second adapter arm; and corresponding interior angles opposite the first vertex and the third vertex are congruent such that the second end of the second adapter arm is configured to sit flush against the second end of the first adapter arm when the second end of the first adapter arm and the second end of the second adapter arm mate with the shackle of the lock.

In accordance with another implementation of the lock adapter, the second adapter arm defines a third bend at a fourth vertex located between the second vertex and a distal portion of the first end of the second adapter arm.

In accordance with another implementation of the lock adapter, the aperture defined in the first end of the second adapter arm is located in the distal portion of the first end of the second adapter arm.

In accordance with another implementation of the lock adapter, the second end of the first adapter arm defines a first shackle aperture sized to receive the shackle of the lock therethrough; and the second end of the second adapter arm defines a second shackle aperture sized to receive the shackle of the lock therethrough.

In accordance with another implementation of the lock adapter, the first adapter arm and the second adapter arm are of unitarily formed of a hardened metal alloy.

In accordance with implementation of the present disclosure, a process for securing a structure having a latch assembly mounted thereon with a lock adapter includes the following: first inserting a first end of a first adapter arm of the lock adapter through an eye of a staple of the latch assembly such that a distal portion of the first end of the first adapter arm extends beyond the e beyond the eye of the staple; engaging a first end of a second adapter arm of the lock adapter with the distal portion of the first end the first adapter arm; nesting a second engagement arm about the staple and mating a second end of the second adapter arm against a second end of the first adapter arm; second inserting a first end of a shackle of a padlock through a first aperture defined within the second end of the first adapter arm and through a second aperture defined within the second end of the second adapter arm; and third inserting the first end of the shackle into a body of the padlock.

BRIEF DESCRIPTION OF THE DRAWINGS

The disclosure will be readily understood by the following detailed description in conjunction with the accompanying drawings. In some instances, like reference numerals designate like structural elements.

The use of cross-hatching in the accompanying figures is generally provided to indicate a surface of a cross-section cut. The use of contour lines, shading, or stippling in the accompanying figures is generally provided indicate surface features, including curved surfaces or changes in depth, to clarify boundaries between adjacent elements, and to facilitate legibility of the figures. Accordingly, neither the presence nor the absence of cross-hatching, contour lines, shading, or stippling conveys or indicates any preference or requirement for particular materials, material properties, element proportions, element dimensions, commonalities of similarly illustrated elements, or any other characteristic, attribute, or property for any element illustrated in the accompanying figures.

Additionally, the proportions and dimensions (either relative or absolute) of the various features and elements (and collections and groupings thereof) and the boundaries, separations, and positional relationships presented therebetween, are provided in the accompanying figures merely to facilitate an understanding of the various non-limiting implementations described herein and, accordingly, may not be presented or illustrated to scale, and do not indicate any preference or requirement for an illustrated implementation to the exclusion of other implementations described with reference thereto.

FIG. 1A is an isometric view of a first example implementation of a lock adapter in a first configuration aiding in locking a latch with a padlock.

FIG. 1B is an isometric view of the first example implementation of the lock adapter of FIG. 1A in a second configuration aiding in locking a latch with a padlock.

FIG. 1C is an isometric view of the first example implementation of the lock adapter of FIG. 1A attached to a padlock.

FIG. 1D is an alternate isometric view of the first example implementation of the lock adapter of FIG. 1A attached to a padlock.

FIG. 2A is a top, front, right-side isometric view of a first adapter arm of the lock adapter of FIG. 1A.

FIG. 2B is front elevation view of the first adapter arm of the lock adapter of FIG. 1A.

FIG. 2C is a bottom plan view of the first adapter arm of the lock adapter of FIG. 1A.

FIG. 2D is a bottom plan view in cross section along line 2D-2D as indicated in FIG. 2B of the first adapter arm of the lock adapter of FIG. 1A.

FIG. 2E is a left-side elevation view, rotated 90 degrees, of the first adapter arm of the lock adapter of FIG. 1A.

FIG. 3A is a top, front, right-side isometric view of a second adapter arm of the lock adapter of FIG. 1A.

FIG. 3B is front elevation view of the second adapter arm of the lock adapter of FIG. 1A.

FIG. 3C is a bottom plan view of the second adapter arm of the lock adapter of FIG. 1A.

FIG. 3D is a bottom plan view, in cross section along line 3D-3D as indicated in FIG. 3B, of the second adapter arm of the lock adapter of FIG. 1A.

FIG. 3E is a left-side elevation view, rotated 90 degrees counterclockwise, of the second adapter arm of the lock adapter of FIG. 1A.

FIG. 4A is a top plan view of a second example implementation of a lock adapter aiding in locking a latch with a padlock.

FIG. 4B is an isometric view of the second example implementation of the lock adapter of FIG. 4A aiding in locking a latch with a padlock.

FIG. 4C is a top plan view of the second example implementation of the lock adapter of FIG. 4A attached to a padlock.

FIG. 4D is an isometric view of the second example implementation of the lock adapter of FIG. 4A attached to a padlock.

FIG. 5A is a bottom, rear isometric view of a first adapter arm of the lock adapter of FIG. 4A.

FIG. 5B is rear elevation view of the first adapter arm of the lock adapter of FIG. 4A.

FIG. 5C is a top plan view of the first adapter arm of the lock adapter of FIG. 4A.

FIG. 5D is a top plan view in cross section along line 5D-5D as indicated in FIG. 5B of the first adapter arm of the lock adapter of FIG. 4A.

FIG. 5E is a right-side elevation view, rotated 90 degrees clockwise, of the first adapter arm for the lock adapter of FIG. 4A.

FIG. 6A is a bottom, rear isometric view of a second adapter arm of the lock adapter of FIG. 4A.

FIG. 6B is rear elevation view of the second adapter arm for the lock adapter of FIG. 4A.

FIG. 6C is a top plan view of the second adapter arm for the lock adapter of FIG. 4A.

FIG. 6D is a top plan view, in cross section along line 6D-6D as indicated in FIG. 6B, of the second adapter arm for the lock adapter of FIG. 4A.

FIG. 6E is a right-side elevation view, rotated 90 degrees counterclockwise, of the second adapter arm for the lock adapter of FIG. 4A.

DETAILED DESCRIPTION

In some situations, members and components of a given structure may be configured, relative to latch assemblies mounted thereon to secure an access point (e.g., a door or a gate) such that the use of a given padlock with the given latch assembly may be inhibited by the one or more other structural members. For example, a structural wall member may be too close to a staple protruding from the hasp of a latch assembly to permit use of a given padlock, such as a padlock having a lock body with given dimensions, characteristics, or otherwise. In other situations, the diameter of the eye opening of a staple may be too small to receive a shackle of a given padlock with a larger diameter. Accordingly, embodiments of lock adapters are disclosed herein for facilitating use of a given padlock with a given latch assembly even when structural members of a structure, or aspects of the padlock itself, preclude use of the given padlock with the given latch assembly.

Various, non-limiting implementations of lock adapters are disclosed herein. A lock adapter may include two adapter arm components that are configured for mating with each other, with a latch assembly including a fixed shackle loop or staple (hereinafter collectively referred to as a “staple”) and a hasp, and with a padlock shackle to secure a structure. The lock adapter may facilitate use of a given padlock with a given latch assembly without modification to the latch assembly, padlock, or structure. In example implementations, a lock adapter may include a first adapter arm and a second adapter arm. The first adapter arm is configured for insertion into an eye of a staple. When so inserted, the first adapter arm inhibits movement of the hasp with respect to the staple and thereby opening of the structure. By preventing movement of the hasp latch, the structure on which the latch assembly is mounted may be secured.

The first adapter arm and the second adapter arm may be further configured, at respective distal portions thereof, for mating with each other. The first adapter arm and the second adapter arm may be further configured, at respective proximal portions, for receiving a shackle of a padlock. The adapter arms may also define a center portion connecting the distal portion with the proximal portion. The distal, center, and proximal portions of a given adapter arm may have any length, width, depth, or configuration, or be made of the same or different materials, or otherwise. The center portion of a given adapter arm may or may not coincide with a longitudinal center of the adapter arm.

For at least one non-limiting implementation, a distal portion of the first adapter arm and a distal portion of the second adapter arm may have different form factors, which are configured to interface and interlock with each other. The distal portion of the first adapter arm is further configured to interface with an eye of a staple in the latch assembly (as further described below). In some implementations, the first lock adapter arm may mate with the latch assembly by insertion of the distal portion of the first adapter arm into and through the eye of the staple until the center portion of the first adapter arm is adjacent to or abuts one side of the staple. Further, during use, a center portion of the second adapter arm may extend around an outside surface of the staple. A center portion of the first adapter arm and the center portion of the second adapter arm may have different configurations. A proximal portion of a first adapter arm and a proximal portion of the second adapter arm may have substantially identical configurations for interfacing with a shackle of a padlock.

For at least one non-limiting implementation, the distal portion of the first adapter arm may define a receiving structure that receives the distal portion of the second adapter arm to provide for mating between the first adapter arm and the second adapter arm. In an alternate example implementation, the distal portion of the second adapter arm may define a receiving structure that receives the distal portion of the first adapter arm to provide for mating between the first adapter arm and the second adapter arm. In some example implementations, a receiving portion of a given adapter arm may be defined as a slot, an opening, a hole, an eye, or other structure into which the distal portion of the other adapter arm may be inserted. In some example implementations, the distal portion of the adapter arm received within the receiving portion of the other adapter arm may have a smaller cross-sectional dimension as compared to the center portion of such adapter arm. In some example implementations, the distal portion of an adapter arm may define an angled portion, bending away from and returning to an axis defined by the center portion of such adapter arm. In some example implementations, the proximal portions of the first adapter arm and the second adapter arm may define a slot, an opening, a hole, an eye, or other structure having an adequate radius through which a shackle of a padlock may pass through.

A first example implementation of a lock adapter 120 is depicted in FIGS. 1A-1D. The lock adapter 120 provides a linkage between a latch assembly 102 mounted on a structure 100 and a padlock 110 that is dimensionally unable to directly interface with the latch assembly 102. The latch assembly 102 is mounted on corresponding members of the structure 100, for example, a door and door frame. The latch assembly 102 includes a staple 104 protruding through a slot in a hasp 108. The hasp 108 may be hinged to pivot over the staple 104 in latched and unlatched positions. The staple 104 defines a shackle aperture 106 for receiving a member of a locking device, typically a shackle 112 of a padlock 110. As noted, in this case, structural or dimensional issues prevent direct interface between the padlock 110 and the latch assembly 102.

The lock adapter 120 may include two components, a first adapter arm 200 and a second adapter arm 300. A proximal portion 232 of the first adapter arm 200 is configured to receive the shackle 112 of the padlock 110. A distal portion 240 of the first adapter arm 200 is configured to pass through the shackle aperture 106 of the staple 104 of the latch assembly 102 and thereby prevent the hasp 108 from being lifted off the staple 104. The distal portion 240 of the first adapter arm 200 is also configured to receive a distal portion 364 of the second adapter arm 300. The proximal portion 232 and the distal portion 240 of the first adapter arm 200 are connected by a central portion 236 as further described below.

A proximal portion 354 of the second adapter arm 300 is also configured to receive the shackle 112 of the padlock 110, and may be designed to have a similar form factor as the proximal portion 232 of the first adapter arm 200. The proximal portion 354 of the second adapter arm 300 may be configured to seat against the proximal portion 232 of the first adapter arm 200 when the lock adapter 120 is engaged with the shackle 112 of the padlock 110. A distal portion 364 of the second adapter arm 300 is configured to be received by and interconnect with the distal portion 240 of the first adapter arm 200 after it passes through the shackle aperture 106 of the staple 104. The proximal portion 354 and the distal portion 364 of the second adapter arm 300 are connected by a central portion 358 that is formed to bend about and around the staple 104 as shown in FIGS. 1A and 1B and as further described below.

FIGS. 2A-2E depict in greater detail the example implementation of the first adapter arm 200 of the example implementation of the lock adapter 120 depicted in FIGS. 1A-1D. As shown, the first adapter arm 200 is generally formed as a straight member along a longitudinal axis. The front and back faces of the first adapter arm 200 may be formed as flat surfaces. The interfaces between the top and bottom edges and the front and back faces of the first adapter arm 200 may be formed as beveled surfaces 206, e.g., to avoid sharp edges while a user is handling the first adapter arm 200. In other example embodiments, the top and bottom surfaces of the first adapter arm 200 may be curved between the front and back faces for the same purpose. The proximal portion 232 defines a aperture 222 for receipt and acceptance of the shackle 112 of the padlock 110 therethrough. For at least one implementation, the aperture 222 may be a circular aperture. The edges 224 of the aperture 222 may also be beveled or curved on both the front and back sides to provide ease of guiding the shackle 112 of the padlock 110 into the aperture 222.

As depicted, the proximal portion 232 of the first adapter arm 200 may be formed with a circular perimeter 226 having a larger radius than a radius of the aperture 222, but concentric with the aperture 222. The circular perimeter 226 of the proximal portion 232 may transition to the central portion 236 of the first adapter arm 200 via a shoulder 228. A width of the central portion 236 between the top and bottom edges may be less than the diameter of the proximal portion 232 as defined by the circular perimeter 226 such that the shoulder 228 acts as a transition between the relative widths of the proximal portion 232 and the central portion 236.

The central portion 236 may be formed as a shank between the proximal portion 232 and the distal portion 240. As shown for at least one implementation of the present disclosure in FIGS. 2A-2E, the cross-sectional form of the central portion 236 extends through to the distal portion 240, maintaining a constant width and thickness of the first adapter arm 200. In some example implementations, the width and thickness of the distal portion 240 may be different than the width and thickness of the central portion 236. The dimensions of the distal portion 240 may generally be selected to ensure compatibility with a variety of sizes of shackle apertures 106 of staples 104. A distal end 218 of the distal portion 240 is formed with a flat end surface. The distal portion 240 further defines an aperture 210 for receipt of the distal portion 362 of the second adapter arm 300 therethrough. For at least one implementation, the aperture 210 is formed as an obround or stadium shape and the perimeter edges 212 thereof on the front and back sides may be beveled as shown.

FIGS. 3A-3E depict in greater detail the example implementation of the second adapter arm 300 of the example implementation of the lock adapter 120 depicted in FIGS. 1A-1D. As shown, the second adapter arm 300 is generally formed as an undulating member in the Y-axis with respect to and along a longitudinal X-axis. The front and back faces of the second adapter arm 300 may be formed as smooth surfaces. The interfaces between the top and bottom edges and the front and back faces of the second adapter arm 300 may be formed as beveled surfaces 316, e.g., to avoid sharp edges while a user is handling the second adapter arm 300. In other example embodiments, the top and bottom surfaces of the second adapter arm 300 may be curved between the front and back faces for the same purpose. The proximal portion 354 may be formed as a flat section that defines an aperture 340 for receipt and acceptance of the shackle 112 of the padlock 110 therethrough. For at least one implementation, the aperture 340 may be a circular aperture. The edges 342 of the aperture 340 may also be beveled or curved on both the front and back sides to provide ease of guiding the shackle 112 of the padlock 110 into the aperture 340.

As depicted, the proximal portion 354 of the second adapter arm 300 may be formed with a circular perimeter 344 having a larger radius than a radius of the aperture 340, but concentric with the aperture 340. The circular perimeter 344 of the proximal portion 354 may transition to the central portion 358 of the second adapter arm 300 via a shoulder section 228. The central portion 358 may be formed as a bent or undulating shank between the proximal portion 354 and the distal portion 364. A first bend in the shank of the central portion 358 may occur at a first vertex 346, which corresponds to a first interior angle 320 on the back side of the second adapter arm 300. In some example embodiments, the first interior angle 320 may be approximately 45°. In at least one implementation, the first interior angle 320 may have different values, for example, between 35° and 55°.

The central portion 358 of the second adapter arm 300 may further define a second bend at a second vertex 348, which corresponds to a second interior angle 322 on the front side of the second adapter arm 300. In some example embodiments, the second interior angle 3222 may be approximately 80°. In at least one implementation, the second interior angle 322 may have different values, for example, between 45° and 90°. The measure of the second interior angle 322 may be selected in conjunction with a depth of the second curve of the bend in the central portion 358 to provide adequate clearance for the second adapter arm 300 over the staple 104 of the latch assembly 102 when the second adapter arm 300 interlocks with the first adapter arm 200 and the lock adapter 120 is installed on the latch assembly 102. A width of the central portion 358 between the top and bottom edges may be less than the diameter of the proximal portion 354 as defined by the circular perimeter 344 such that the shoulder section 228 acts as a transition between the relative widths of the proximal portion 354 and the central portion 358.

As shown for at least one implementation of the present disclosure in FIGS. 3A-3E, the bent shank form of the central portion 358 transitions to the distal portion 364, which is formed as a latch finger 328 with a reduced thickness between the top and bottom edges. The latch finger 328 further bends at a third vertex 350 to form a tip section 366 that is parallel with the proximal portion 354. The third vertex 350 corresponds to a third interior angle 324 on the back side of the second adapter arm 300. In some example embodiments, the third interior angle 324 may be approximately 45°. In at least one implementation, the third interior angle 324 may have different values, for example, between 35° and 55°.

A longitudinal axis of the tip section 366 is offset from a longitudinal axis of the proximal portion 354 such that they lie in different, separated planes as shown, for example, in FIG. 3C. A distal end 318 of the distal portion 364 is formed with a flat surface. The tip section 366 of the latch finger 328 is configured to extend through the aperture 210 of the distal portion 240 of the first adapter arm 200 as depicted in FIGS. 1C and 1D. The third vertex 350 associated with the bend between the tip section 366 and the remainder of the latch finger 328 creates a “hook” that interfaces with the distal end 218 of the distal portion 240 of the first adapter arm 200, thereby linking and connecting the distal portion 364 of the second adapter arm 300 to the distal portion 240 of the first adapter arm 200.

A second example implementation of a lock adapter 420 is depicted in FIGS. 4A-4D. The lock adapter 420 provides a linkage between a latch assembly 402 mounted on a structure 400 and a padlock 410 that is dimensionally unable to directly interface with the latch assembly 402. The latch assembly 402 is mounted on corresponding members of the structure 400, for example, a door and door frame. The latch assembly 402 includes a staple 404 protruding through a slot in a hasp 408. The hasp 408 may be hinged to pivot over the staple 404 in latched and unlatched positions. The staple 404 defines an eye 406 for receiving a member of a locking device, typically a shackle 412 of a padlock 410. In at least one implementation, structural or dimensional issues may prevent direct interface between the padlock 410 and the latch assembly 402.

The lock adapter 420 may include two components, a first adapter arm 500 and a second adapter arm 600. A proximal portion 534 of the first adapter arm 500 is configured to receive the shackle 412 of the padlock 410. A distal portion 542 of the first adapter arm 500 is configured to pass through the eye 406 of the staple 404 of the latch assembly 402 and thereby prevent the hasp 408 from being lifted off the staple 404. The distal portion 542 of the first adapter arm 500 is also configured for insertion into a receiving structure on a distal portion 644 of the second adapter arm 600. The proximal portion 534 and the distal portion 542 of the first adapter arm 500 are connected by a central portion 538 as further described below.

A proximal portion 636 of the second adapter arm 600 is also configured to receive the shackle 412 of the padlock 410, and may be designed to have a similar form factor as the proximal portion 534 of the first adapter arm 500. The proximal portion 636 of the second adapter arm 600 may be configured to seat against the proximal portion 534 of the first adapter arm 500 when the lock adapter 420 is engaged with the shackle 412 of the padlock 410. A distal portion 644 of the second adapter arm 600 is configured to receive and interconnect with the distal portion 542 of the first adapter arm 500 after it passes through the eye 406 of the staple 404. The proximal portion 636 and the distal portion 644 of the second adapter arm 600 are connected by a central portion 638 that is formed to bend about and around the staple 404 as shown in FIGS. 4A and 4B and as further described below.

FIGS. 5A-5E depict in greater detail the example implementation of the second adapter arm 500 of the example implementation of the lock adapter 420 depicted in FIGS. 4A-4D. As shown, the first adapter arm 500 is generally formed as a single member that is parallel to the longitudinal X-axis, but is bent with respect to the Y-axis as shown in the figures at a vertex 518 in the central portion 538. The front and back faces of the first adapter arm 500 may be formed as flat surfaces. The interfaces between the top and bottom edges and the front and back faces of the first adapter arm 500 may be formed as beveled surfaces 510, e.g., to avoid sharp edges while a user is handling the first adapter arm 500. In other example embodiments, the top and bottom surfaces of the first adapter arm 500 may be curved between the front and back faces for the same purpose. The proximal portion 534 defines an aperture 526 for receipt and acceptance of the shackle 412 of the padlock 410 therethrough. For at least one implementation, the aperture 526 may include a circular aperture. The edges 530 of the aperture 526 may also be beveled or curved on both the front and back sides to provide ease of guiding the shackle 412 of the padlock 410 into the aperture 526.

As depicted, the proximal portion 534 of the first adapter arm 500 may be formed with a circular perimeter 512 having a larger radius than a radius of the aperture 526, but concentric with the aperture 526. The circular perimeter 512 of the proximal portion 534 may transition to the central portion 538 of the first adapter arm 500 via a shoulder section 514. A width of the central portion 538 between the top and bottom edges may be less than the diameter of the proximal portion 534 as defined by the circular perimeter 512 such that the shoulder section 514 acts as a transition between the relative widths of the proximal portion 534 and the central portion 538.

The central portion 538 may be formed as a bent shank between the proximal portion 534 and the distal portion 542, bending at a vertex 518 within the central portion 538. In some example implementations, the interior angle 520 of the bend of the central portion 538 opposite the vertex may be approximately 150°. In at least one implementation, the interior angle 520 may have different values, for example, between 120° and 160°.

As shown for at least one implementation of the present disclosure in FIGS. 5A-5E, the cross-sectional form of the central portion 538 extends through to the distal portion 542, maintaining a constant width and thickness of the first adapter arm 500. In some example implementations, the width and thickness of the distal portion 542 may be different than the width and thickness of the central portion 538. The dimensions of the distal portion 542 may generally be selected to ensure compatibility with a variety of sizes of eyes 406 of staples 404. A distal end 524 of the distal portion 542 may be formed with a flat end surface.

FIGS. 6A-6E depict in greater detail the example implementation of the second adapter arm 600 of the example implementation of the lock adapter 420 depicted in FIGS. 4A-4D. As shown, the second adapter arm 600 is generally formed as an undulating member in the Y-axis with respect to and along a longitudinal X-axis. The front and back faces of the second adapter arm 600 may be formed as smooth surfaces. The interfaces between the top and bottom edges and the front and back faces of the second adapter arm 600 may be formed as beveled surfaces 616, e.g., to avoid sharp edges while a user is handling the second adapter arm 600. In other example embodiments, the top and bottom surfaces of the second adapter arm 600 may be curved between the front and back faces for the same purpose. The proximal portion 636 may be formed as a flat section that defines an aperture 626 for receipt and acceptance of the shackle 412 of the padlock 410 therethrough. For at least one implementation, the aperture 626 may be a circular aperture. The edges 664 of the aperture 626 may also be beveled or curved on both the front and back sides to provide ease of guiding the shackle 412 of the padlock 410 into the aperture 626.

As depicted, a proximal end 614 of the proximal portion 636 of the second adapter arm 600 may be formed as a circular curve having a larger radius than a radius of the aperture 626, but concentric with the aperture 626. The circular perimeter 344 of the proximal portion 354 may transition directly to the central portion 358 of the second adapter arm 600 such that the diameter of the circular curve of the proximal end 614 is congruent with the width of the central portion 638.

The central portion 638 may be formed as a bent or undulating shank in the Y-axis between the proximal portion 636 and the distal portion 644. The proximal portion 636 may transition to the central portion 638 at a first vertex 650. The shank of the central portion may bend in the same direction at a second vertex 652. The central portion 638 may transition to the distal portion 644 at a third vertex 654 forming a recurve bend in an opposite direction from the bends at the first vertex 650 and the second vertex 652. The inner curve of the bend at the first vertex 650 between the proximal portion 636 and the central portion 638 may be defined by a first interior angle 622. In some example embodiments, the first interior angle 622 may be approximately 150° such that the bend at the vertex 518 of the second adapter arm 500 and the first vertex 650 of the second adapter arm 600 are congruent. In at least one implementation, the first interior angle 622 may have different values, for example, between 120° and 160°.

With this configuration, the proximal portion 534 and a length of the central portion 538 of the first adapter arm 500 and the proximal portion 636 and a length of the central portion 638 of the second adapter arm 600 can nest against each other when attached to the shackle 412 of the padlock 410. The bends at the vertex 518 of the first adapter arm 500 and the first vertex 650 of the second adapter arm 600 may allow proximal portions 534, 636 of the, respective, first adapter arm 500 and second adapter arm 600 of the lock adapter 420 to extend away from a surface of the structure 400 as shown in FIG. 4A to provide greater clearance for attachment of the padlock 410.

As noted, the shank forming the central portion 638 may bend at second vertex 652 and form a second interior angle 624. In some example embodiments, the second interior angle 624 may be approximately 135°. In at least one implementation, the second interior angle 624 may have different values, for example, between 120° and 150°. Opposite the third vertex 654 transitioning between the central portion 638 and the distal portion 644, a third interior angle 632 is formed. In some example embodiments, the third interior angle 632 may be approximately 90°. In at least one implementation, the third interior angle 632 may have different values, for example, between 75° and 115°. The measures of the second interior angle 624 and the third interior angle 632 may be selected in conjunction with a depth of the inner curve of the bend at the third vertex 654 between the central portion 358 and the distal portion 644 to provide adequate clearance for the second adapter arm 600 over the staple 404 of the latch assembly 402 when the second adapter arm 600 interlocks with the first adapter arm 500 and the lock adapter 420 is installed on the latch assembly 402.

The distal portion 644 further bends toward the central portion 638 at a fourth vertex 656 to form a tip section 646 defining a fourth interior angle 634. In some example embodiments, the fourth interior angle 634 may be approximately 45°. In at least one implementation, the fourth interior angle 634 may have different values, for example, between 35° and 55°. The tip section 646 of the distal portion 644 further defines an aperture 648 for receipt of the distal portion 542 of the first adapter arm 500 therethrough. In this example embodiment

As shown for at least one implementation, the aperture 648 is formed as an obround or stadium shape and the edges 664 thereof on the front and back sides may be beveled as shown. The distal portion 542 of the first adapter arm 500 is angled to extend through the aperture 648 of the distal portion 644 of the second adapter arm 600 as depicted in FIGS. 4C and 4D. A distal end 618 of the distal portion 644 may be formed with a flat surface. The fourth interior angle 634 between the tip section 646 and the remainder of the distal portion 644 creates a “hook” that allows the aperture 648 in the tip section 646 to interface with the distal end 524 of the distal portion 542 of the first adapter arm 500, thereby linking and connecting the distal portion 644 of the second adapter arm 600 to the distal portion 542 of the first adapter arm 500.

In some example implementations, the adapter arms are unitarily formed, e.g., by a casting or machining process, of a hardened metal material, such as a boron alloy, a hardened steel, a hardened metal alloy, and the like. In example implementations, the adapter arms may be formed from one-quarter inch (¼″) boron hardened steel. In some example implementations, implementation, an aperture in a proximal portion of an adapter arm may be configured to receive a shackle having a diameter of between seven millimeters (7 mm) and ten millimeters (10 mm). Any known or later-arising materials, and combinations thereof, may be used to form the distal, center, and proximal portions of an adapter arm. In some implementations, different materials may be used for the distal, center, and proximal portions of an adapter arm.

A process for securing a structure using a lock adapter 120, 420 configured according to an example implementation of the present disclosure may include a first operation of inserting a first adapter arm 200, 500 into a shackle aperture 106, 406 of a staple 104, 404 to secure a hasp 108, 402, and thereby secure a structure. The process may further include a second operation of mating, at respective distal portions thereof, the first adapter arm 200, 500 with a second adapter arm 300, 600. The process may further include mating, at respective proximal portions, the first adapter arm 200, 500 and second adapter arm 300, 600 with a shackle 112, 412 of a padlock 110, 410. The process may further include securing the shackle 112, 412 in a lock body 114, 414 of the padlock 110, 410.

A process for unsecuring a structure 100, 400 secured using a lock adapter 120, 420 according to an implementation of the present disclosure may involve performing the above described operations in a reverse order, such as unsecuring the shackle 112, 412 from the lock body 114, 414, unmating the shackle 112, 412 with the first adapter arm 200, 500 and the second adapter arm 300, 600, unmating the first adapter arm 200, 500 from the second adapter arm 300, 600, and withdrawing the first adapter arm 200, 500 from the shackle aperture 106, 406 of the staple 104, 404 to release the hasp 108, 402.

Based on design considerations, the components described above may be of substantially different shape than depicted in the figures, while still operating in the same or an equivalent manner. For example, an implementation of a lock adapter may be taller, shorter, wider, thinner, or of different cross-sectional shape than depicted herein. A number of variations of the examples and implementations described above are possible. In some implementations, one or more fasteners may be eliminated by combining given components as single units. Directional references e.g., upper, lower, inner, outer, upward, downward, left, right, lateral, front, back, top, bottom, above, below, vertical, horizontal, clockwise, counterclockwise, proximal, and distal are used for identification purposes to aid the reader's understanding of the claimed subject matter, and do not create limitations, particularly as to the position, orientation, or use of the lock adapter. Connection references, e.g., attached, coupled, connected, and joined are to be construed broadly and may include intermediate members between a collection of elements and relative movement between elements unless otherwise indicated. As such, connection references do not imply that two elements are directly connected and in fixed relation to each other. The term “or” shall be interpreted to mean “and/or” rather than “exclusive or.” Unless otherwise noted in the claims, stated values shall be interpreted as illustrative and shall not be taken to be limiting.

The above specification, examples and drawings provide a complete description of the structure and use of one or more non-limiting implementations of a lock adapter as defined in the claims. Although various implementations of the claimed subject matter have been described above with a given degree of particularity, or with reference to one or more individual implementations, those skilled in the art could make numerous alterations to the disclosed implementations without departing from the spirit or scope of the claimed subject matter. For example, components may be made of many varied materials, and may be colored or patterned for aesthetic purposes or for ease of assembly. Still other implementations are contemplated. It is intended that all matter contained in the above description and shown in the accompanying drawings shall be interpreted as illustrative of particular implementations and not limiting. Changes in detail or structure may be made without departing from the basic elements of the subject matter as defined in the following claims. 

What is claimed is:
 1. A lock adapter for a lock with a shackle comprising: a first adapter arm having a first end and a second end; wherein the first end of the first adapter arm is configured for mating with a staple of a latch assembly; wherein the latch assembly includes corresponding hasp configured for use in controlling access to at least a portion of a structure; and wherein the second end of the first adapter arm is configured for mating with the shackle of the lock; and a second adapter arm having a first end and a second end; wherein the first end of the second adapter arm is configured for mating with the first end of the first adapter arm after the first end of the first adapter arm mates with the latch; and wherein the second end of the second adapter arm is configured for mating with the shackle of the lock; and wherein upon the lock adapter mating with the staple and with the shackle of the lock, access to the structure via the latch assembly is inhibited.
 2. The lock adapter of claim 1, wherein the second end of the first adapter arm defines an aperture sized to receive the shackle of the lock therethrough.
 3. The lock adapter of claim 1, wherein the second end of the second adapter arm defines an aperture sized to receive the shackle of the lock therethrough.
 4. The lock adapter of claim 1, wherein the first end of the first adapter arm is sized and formed to extend through an eye defined within the staple of the latch assembly; and wherein the first end of the first adapter arm defines an aperture configured to receive the first end of the second adapter arm therethrough after the first end of the first adapter arm extends through the eye of the staple.
 5. The lock adapter of claim 1, wherein the first adapter arm extends along a first longitudinal axis from the first end to the second end and is planar with respect to a second axis.
 6. The lock adapter of claim 1, wherein the first adapter arm extends along a first longitudinal axis from the first end to the second end and bends at a vertex between the first end and the second end with respect to a second axis.
 7. The lock adapter of claim 4, wherein the first adapter arm extends along a first longitudinal axis from the first end to the second end and is planar with respect to a second axis; and wherein the second adapter arm defines a first bend, at a first vertex between the first end of the second adapter arm and the second end of the adapter arm, that allows the second adapter arm to nest around the staple.
 8. The lock adapter of claim 7, wherein the second adapter arm defines a second bend at a second vertex between the first vertex and a distal portion of the first end of the second adapter arm.
 9. The lock adapter of claim 8, wherein the second end of the second adapter arm lies within a first plane; and wherein the distal portion of the first end of the second adapter arm lies within a second plane parallel to, but spaced apart from, the first plane.
 10. The lock adapter of claim 7, wherein the first end of the second adapter arm defines a latch finger portion with a smaller cross-sectional area than a central portion of the second adapter arm extending between the first end of the second adapter arm and the second end of the second adapter arm.
 11. The lock adapter of claim 7, wherein the second end of the first adapter arm defines a first shackle aperture sized to receive the shackle of the lock therethrough; and wherein the second end of the second adapter arm defines a second shackle aperture sized to receive the shackle of the lock therethrough.
 12. The lock adapter of claim 7, wherein the first adapter arm and the second adapter arm are of unitarily formed of a hardened metal alloy.
 13. The lock adapter of claim 1, wherein the first end of the first adapter arm is sized and formed to extend through an eye defined within the staple of the latch assembly; and wherein the first end of the second adapter arm defines an aperture configured to receive the first end of the first adapter arm therethrough after the first end of the first adapter arm extends through the eye of the staple.
 14. The lock adapter of claim 13, wherein the first adapter arm extends along a first longitudinal axis from the first end to the second end and bends at a first vertex between the first end of the first adapter arm and the second end of the first adapter arm with respect to a second axis; and wherein the second adapter arm defines a first bend at a second vertex located between the first end of the second adapter arm and the second end of the adapter arm such that the bend allows the second adapter arm to nest around the staple.
 15. The lock adapter of claim 14, wherein the second adapter arm defines a second bend at a third vertex located between the second vertex and the second end of the second adapter arm; and wherein corresponding interior angles opposite the first vertex and the third vertex are congruent such that the second end of the second adapter arm is configured to sit flush against the second end of the first adapter arm when the second end of the first adapter arm and the second end of the second adapter arm mate with the shackle of the lock.
 16. The lock adapter of claim 15, wherein the second adapter arm defines a third bend at a fourth vertex located between the second vertex and a distal portion of the first end of the second adapter arm.
 17. The lock adapter of claim 16, wherein the aperture defined in the first end of the second adapter arm is located in the distal portion of the first end of the second adapter arm.
 18. The lock adapter of claim 17, wherein the second end of the first adapter arm defines a first shackle aperture sized to receive the shackle of the lock therethrough; and wherein the second end of the second adapter arm defines a second shackle aperture sized to receive the shackle of the lock therethrough.
 19. The lock adapter of claim 13, wherein the first adapter arm and the second adapter arm are of unitarily formed of a hardened metal alloy.
 20. A process, for securing a structure having a latch assembly mounted thereon with a lock adapter, comprising: first inserting a first end of a first adapter arm of the lock adapter through an eye of a staple of the latch assembly such that a distal portion of the first end of the first adapter arm extends beyond the e beyond the eye of the staple; engaging a first end of a second adapter arm of the lock adapter with the distal portion of the first end the first adapter arm; nesting a second engagement arm about the staple and mating a second end of the second adapter arm against a second end of the first adapter arm; second inserting a first end of a shackle of a padlock through a first aperture defined within the second end of the first adapter arm and through a second aperture defined within the second end of the second adapter arm; and third inserting the first end of the shackle into a body of the padlock. 